GWS S689-2BB/MG - Heavy Duty Servo

Specifications

Source: Most data comes from the manufacturer but some data is sourced from our loyal community.

Last Updated:	2025-08-07
Modulation:	Analog
Torque:	4.8V: 361.00 oz-in (25.99 kg-cm) 6.0V: 416.00 oz-in (29.96 kg-cm)
Speed:	4.8V: 0.16 sec/60° 6.0V: 0.13 sec/60°
Weight:	5.64 oz (160.0 g)
Dimensions:	Length:2.48 in (63.0 mm) Width:1.26 in (32.0 mm) Height:2.43 in (61.7 mm)
Motor Type:	(add)
Gear Type:	Metal
Rotation/Support:	Dual Bearings
Rotational Range:	(add)
Pulse Cycle:	(add)
Pulse Width:	(add)
Connector Type:	(add)

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The discontinued GWS S689-2BB/MG is a top-tier servo that represents the ultimate in analog performance and durability from GWS. The ""N"" designation often refers to a ""Narrow"" deadband for high precision, and it is packed with every premium feature: a rugged all-Metal Gear (MG) train and a precise Dual Ball Bearing (2BB) supported output shaft. This servo is engineered for the most extreme and abusive applications, making it a premier choice for the steering on a 1/8 scale race truggy or the flight controls on a large, aggressively flown 3D aircraft.
The identity of the S689-2BB/MG is its indestructible precision. It is a servo for the hobbyist who wants the best of all worlds: the power of a high-torque servo, the smoothness and accuracy of dual ball bearings, and the toughness of metal gears. This results in a servo that feels incredibly precise and connected, but has the backbone to survive in a high-stress, high-impact environment. It is a servo that can be installed with the ultimate confidence in any critical application.
For advanced, high-impact robotics, such as competitive combat robotics, the GWS S689-2BB/MG is a dominant force. Its combination of power, precision, and extreme toughness makes it a perfect choice for powerful weapon systems or robust drive trains. For any robotics project that must perform at a high level in a physically demanding environment, the S689-2BB/MG is a top-tier solution."